SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

spec-masz.pl

SSL/TLS Certificate

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SSL/TLS Certificate for spec-masz.pl

Valid
Issued by (CA)
Let's Encrypt
Subject
spec-masz.pl
Valid from
Jun 4, 2026
Valid until
Sep 2, 2026 (42 days remaining)
Public key
RSA 2048-bit
Serial
06EEC95322045672DFD53B49A4E8B6CC9BD9
SHA-256 fingerprint
0F:29:2B:36:5B:82:20:63:E6:32:8C:52:74:58:A4:1C:9C:EE:CB:48:B8:84:14:C7:96:97:72:3F:CF:66:6C:05
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
spec-masz.pl, www.spec-masz.pl

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.